Home / 158,780.88-219,103.92-87,160.68

Finding the Fourth Proportional to 158,780.88, 219,103.92 and 87,160.68

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Solution

The fourth proportional to 158,780.88, 219,103.92 and 87,160.68 is: 120,274.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,780.88 : 219,103.92 = 87,160.68 : x
  2. Step 2: Convert to fraction form
    158,780.88/219,103.92 = 87,160.68/x
  3. Step 3: Cross multiply
    158,780.88x = 219,103.92 × 87,160.68
  4. Step 4: Simplify right side
    158,780.88x = 19,097,246,657.87
  5. Step 5: Solve for x
    x = 19,097,246,657.87/158,780.88
  6. Step 6: Final answer
    x = 120,274.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.